when the experimenter was dressed in a lab coat vs when the experimenter was dressed in ordinary casual clothes obedience dropped to 20%
to further this, bickman did a field experiment
- in the street people were asked by either a civillian, milkman or policeman to pick rubbish / give a dime to a stranger / move from a bus stop
- 92% obeyed to give money by someone in a guard uniform
-49% obeyed to give money by someone in civillian clothes